内容简介
编辑推荐：本书包含有关路由模型，进程和设计的翔实的技术细节，可以作为设计，实现或支持基于TCP、IP、IPX、SPX，APPLETALK，SNA，DECNET和BANYAN VINES协议的网络互连的参考手册。本书主要包括三部分：介绍网络互连的相关概念和理论，主要介绍物理层，数据链路层，网络层的协议以及基本路由器的配置；详细介绍TCP、IP协议，也包括NOVEL IPX，APPLETALK协议的配置方法等；介绍WAN的通信，包括WAN的连接，X25和帧中继的配置等。本书特别适合于参加CCNA考试的读者。Cisco公司把本书作为CCNA的正式课本。对于其他读者，本书可以使他们增加对影响网络通信和安全的基础理论的理解。
目录
PART 1 INTRODUCTION TO INTERNETWORKING
Chapter 1 The Internetworking Model
The Evolution of Networks
1960s and 1970s:Centralized Processing
1970s and 1980s:NetWorks
1980s and 1990s:Internetworks
1990s:global Internetworking
Network Types and Devices
Local-Area Networks
Wide-Area Networks
Enterprise Networks
Network Design Goals
The Layered Model
Why Use a Layered Model
Application Layer
Presentation Layer
Session Layer
Transport Layer
Network Layer
Data Link Layer
Physical Layer
Peer-to-Peer Communications
Data Encapsulation and Headers
Step 1:Build the Data
Step 2:Package Data for End-to-End Transport
Step 3:Append Network Address in Header
Step 4:Append Local Address
in Data-Link Header
Step 5:Convert to Bits for Transmission
Summary
Chapter One Test :The Internetworking Model
Chapter 2 Applications and Upper Layers
Application Layer
Presentation Layer
Text and Data Formatting and Conversion
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